Tracebook vs H&I Products
Price, ratings, monetisation and update history for both apps, side by side โ with what reviewers say about each.
Tracebook
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Tracebook is an independent public non-profit community that promotes the open exchange of loudspeaker system reference data measured by audio professionals for audio professionals. The app is an iOS version of the Tracebook website found at https://trace-book.org. The reference data includes: โข Magnitude โข Phase โข Coherence โข Measurement details
H&I Products
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HIProducts is a practical tool for RF/communication engineers and radio/frequency analysis users. By entering F1 and F2 (FM Band) values, it automatically calculates harmonics and intermodulation products and visualizes them in a graph. Graphs can be saved as images or shared with other apps via the iOS Share Sheet. How to Use 1. Enter F1 and F2 (FM Band) values. 2. Tap the "Generate" button to create a graph. 3. Pinch with two fingers to zoom in/out on the graph. (Zoom is also possible using the + / - buttons) 4. Use the Share button to save or share as an image/PDF.
Screenshots
Verdict
Tracebook and H&I Products are too close to call on the numbers: across 6 compared parameters โ price, update cadence, ads and in-app purchases among them โ neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.
Scored on Price ยท Rating ยท Positive reviews ยท Number of ratings ยท Update frequency ยท Ads ยท In-app purchases ยท Monetization ยท Best chart rank ยท Devices ยท Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
Tracebook ships an update every 3 weeks, H&I Products fortnightly. The most recent releases landed on October 30, 2026 and October 31, 2026 respectively.
| Parameter | Tracebook | H&I Products |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 3 weeks | Fortnightly โ better |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPad | iPhone, iPad |
| Requires iOS | 16.6 โ better | 17.6 |
| Further details โ not scored | ||
| Size | 3 MB | 9 MB |
| Age rating | 4+ | 4+ |
| Developer | Marcus Painter | HyeBeen Han |
In-app purchases
Tracebook
No in-app purchases
H&I Products
No in-app purchases









